to cry in a noisy way like a child

There he sat, cowering against the wall, blubbering like a child. 他坐在那儿，蜷缩在墙边，像个孩子似地嚎啕大哭。

Oh stop blubbing! Your knee can't hurt that much. 噢，别哭了！你的膝盖伤得没那么厉害。

the thick layer of fat under the skin of sea mammals, such as whales, that keeps them warm

too much body fat on a human

Get some exercise and get rid of some of that blubber! 锻炼锻炼身体，把你那赘肉减掉些！